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- Which of the following best summarizes the strategy used by CAM plants, which live in hot and dry climates, in order to conserve water? O These plants use a different electron donor so that they won't consume water O These plants keep stomata closed day and night to avoid evaporation O These plants collect carbon dioxide at night, but then use the carbon dioxide during the day O These plants are heterotrophs, so they do not need to rely on light reactions that consume waterWhy do plants need toexchange gases with theenvironment?What is the process when plants taking in carbon dioxide?
- Gas exchange in a plant's leaf consists of _____ entering the leaf tissue, and _____ exiting from it. A)oxygen (O2); carbon dioxide B)carbon dioxide; ammonia C)carbon dioxide; oxygen (O2) D)water; carbon dioxide 16.Imagine yourself as a water molecule in the soil solution of aforest. In a short essay (100–150 words), explain what pathwaysand what forces would be necessary to carry you to the leaves ofthese trees.If a plant closes its stomata, what can no longer get into the leaf, that cells need to do photosynthesis? O carbon dioxide охygen water O glucose
- Most of the abundant gas in the atmosphere is not bioavailable to plants. How does this abundant gas become bioavailable?If a leaf disc is exposed to light but not to CO2, why would it not produce enough O2 to float?During an experiment, a student covers all the stomata of a plant with nail polish, sealing them shut a)Predict how this would affect water transport b)How would this affect transport in the phloem?
- Why do plants need transportation?If a C3 plant that normally closes its stomata during hot, dry conditions were triggered to open them instead, the most likely outcome would be that O water leaves the leaf, decreasing the rate of photosynthesis O glucose leaves the leaf, increasing the rate of photosynthesis O CO₂ enters the leaf, decreasing the rate of photosynthesis O O₂ enters the leaf, increasing the rate of photosynthesis more chlorophyll is made, increasing the rate of photosynthesisB) Describe the mechanisms employed by two types of plants to minimize photorespiration and ensure that the CC is carried out even when environmental conditions are not in their favor. Be sure to identify 1) the type of plant, 2) its natural environment and how it affects the plant's ability to perform the CC, and 3) how it has adapted itself to minimize photorespiration. 4
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